primefaces - JSF. How to disable page components by bean method -


I want to disable some menu items on my web page: 

  & lt; P: menuitem value = "edit" update = ": formation: visibleDialPlayAdit" icon = "UI-icon-document" incomplete = ... disabled = "# {bean.sys (1)}" />   
 and in my backup bean:  
  ask public boolean (int id) {ask for the database for the privilege "id" and if the returned user is correct Yes, the privilege "id" is returned and false)   
 Of course I want to check it only once - during rendering the page In this example, regardless of the outcome of the "Ask" menu, is always enabled. I know that I can set the Boolean variable xmls code (# {bean.ask1}), but I want a universal solution Can you help   
 
 
 Get in a bean with a private variable and ask with set methods.  
  ask private boolean = true; Public Boolean issk () {ask again; } Public Zero SetAsak (Ask Boolean) {this.ask = ask; }   
 Now whatever position you want to enable or disable menu items, set or reset the variable set properly in a different method in Bean.  
  if (condition = true) {setAsk (wrong); }

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